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Annotation of embedaddon/strongswan/src/libpttls/sasl/sasl_mechanism.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2013 Martin Willi
                      3:  * Copyright (C) 2013 revosec AG
                      4:  *
                      5:  * This program is free software; you can redistribute it and/or modify it
                      6:  * under the terms of the GNU General Public License as published by the
                      7:  * Free Software Foundation; either version 2 of the License, or (at your
                      8:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
                      9:  *
                     10:  * This program is distributed in the hope that it will be useful, but
                     11:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     12:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
                     13:  * for more details.
                     14:  */
                     15: 
                     16: #include "sasl_mechanism.h"
                     17: 
                     18: #include "sasl_plain/sasl_plain.h"
                     19: 
                     20: /**
                     21:  * Available SASL mechanisms.
                     22:  */
                     23: static struct {
                     24:        char *name;
                     25:        bool server;
                     26:        sasl_mechanism_constructor_t create;
                     27: } mechs[] = {
                     28:        { "PLAIN",              TRUE,   (sasl_mechanism_constructor_t)sasl_plain_create },
                     29:        { "PLAIN",              FALSE,  (sasl_mechanism_constructor_t)sasl_plain_create },
                     30: };
                     31: 
                     32: /**
                     33:  * See header.
                     34:  */
                     35: sasl_mechanism_t *sasl_mechanism_create(char *name, identification_t *client)
                     36: {
                     37:        int i;
                     38: 
                     39:        for (i = 0; i < countof(mechs); i++)
                     40:        {
                     41:                if (streq(mechs[i].name, name) && mechs[i].server == (client == NULL))
                     42:                {
                     43:                        return mechs[i].create(name, client);
                     44:                }
                     45:        }
                     46:        return NULL;
                     47: }
                     48: 
                     49: /**
                     50:  * SASL mechanism enumerator
                     51:  */
                     52: typedef struct {
                     53:        /** implements enumerator_t */
                     54:        enumerator_t public;
                     55:        /** looking for client or server? */
                     56:        bool server;
                     57:        /** position in mechs[] */
                     58:        int i;
                     59: } mech_enumerator_t;
                     60: 
                     61: METHOD(enumerator_t, mech_enumerate, bool,
                     62:        mech_enumerator_t *this, va_list args)
                     63: {
                     64:        char **name;
                     65: 
                     66:        VA_ARGS_VGET(args, name);
                     67:        while (this->i < countof(mechs))
                     68:        {
                     69:                if (mechs[this->i].server == this->server)
                     70:                {
                     71:                        *name = mechs[this->i].name;
                     72:                        this->i++;
                     73:                        return TRUE;
                     74:                }
                     75:                this->i++;
                     76:        }
                     77:        return FALSE;
                     78: }
                     79: 
                     80: /**
                     81:  * See header.
                     82:  */
                     83: enumerator_t* sasl_mechanism_create_enumerator(bool server)
                     84: {
                     85:        mech_enumerator_t *enumerator;
                     86: 
                     87:        INIT(enumerator,
                     88:                .public = {
                     89:                        .enumerate = enumerator_enumerate_default,
                     90:                        .venumerate = _mech_enumerate,
                     91:                        .destroy = (void*)free,
                     92:                },
                     93:                .server = server,
                     94:        );
                     95:        return &enumerator->public;
                     96: }